Blackmagic Duplicator firmware v1.2

This software update adds new long form recording features to Blackmagic Duplicator 4K. In addition to standard duplication mode, Blackmagic Duplicator 4K can now record in single disk mode and infinite overwrite mode. The new single disk mode sequentially writes to each SD card, one at a time. As one card is filled, recording automatically continues onto the next card. When all available media is full, recording stops. The new infinite overwrite mode writes sequentially to a set of cards and then loops back, overwriting the oldest card and starting again.